Wringer



R. I. MINER April 30, 1940.

WRINGER Filed Jan. 11,1957 2 Sheets-Sheet 1 A TTORNEYJ.

R. I. MINER WRINGER -2 Sheets-Sheet 2 Filed Jan. 11, 1937 t I INVENTOR aM7: er,

uel-z BY ATTORNEYJ.

Patented Apr. 30, 1940 UNITED STATES WRINGEB Robert I. Miner, Salem,

Ohio, aslignorto Mullins Manufacturing Corporation, Salem, Ohio, acorporation of New York Application January 11 6 Claims.

The object of my invention is to provide a mechanism by means of whichdesired pressure relationship between the two rolls may be readilyestablished and disestablished without dis- 5 turbance of thefundamental setting of the pressure springs, and of such character as topresent a neat and effective appearance when the parts are in theirnormal working relationship.

The accompanying drawings illustrate my invention:

Fig. 1 is a fragmentary elevation, in partial vertical section, of astructure embodying invention, N

Fig. 2 a fragmentary end elevation in partial vertical section,

Fig. 3 a section on line 33 of Fig. 1,

Fig. 4 a fragmentary vertical elevation of a modification,

Fig. 5 a fragmentary vertical section showing 20 another modification,

Fig. 6 a section on line 6--5 of Fig. 5, and

Fig. '7 a fragmentary section of another modification.

In the drawings l indicates a U-shaped base,

25 preferably formed of sheet metal comprising end uprights II and I2U-shaped in cross section, as indicated in Fig. 3. Within each uprightand I2 is a vertical U-shaped guideway I4 adapted to receive and guidethe bearing blocks 30 I and I6 respectively for the trunnions of thelower roll I! and upper roll l8. Secured to the inner face of the endwallof upright I2 is a plate l9 provided with spaced ears 20 projectedthrough perforation-2| in said end wall. Pivoted 35 between ears 2|) onpin 22 is a link 23, the other end of said link being pivoted on pin 24carried by ears 25 of a plate 26 secured to the inner face of ahandlever 21 which is U-shaped in cross section, as indicated in Fig. 3. Theside walls 40 of lever 21, at its upper end, are projected beyond themiddle of the wall (as indicated in Fig. 1) to straddle the hollowbridge wall 25 and these projecting ends are pivoted upon pin 29 carriedby the bridge bar 28. In the assembly thus de- 45 scribed, thelever 21,link 23, and pivotal connections 24, 22 and 29 form a permanent togglelink connection between the base and one end of the bridge bar.

The outer wall of standard near its upper end carries an outwardlyprojecting pin 30 over which perforations 3| in one end of bridge bar 28may be projected. Within bridge bar 25 is a bow spring 35 suspended atits middle, by

means of grip 35, upon the lower end of screw 31 threaded in block 35 ofbridge bar 24 and pro- 1937, Serial No. 119,961

vided with an operating head 39, screw 31 being rotatable relative tospring 35. The opposite ends of spring 35 rest' upon the two bearingblocks l5 and adjustment of screw 31 determines the initial pressure ofsaid spring upon the bear- 5 ing blocks l5 and the upper roll l8.

Secured to the outer face of the end wall of upright |2 is the upper endof a spring 40, the lower end of which is bent to properly coact with alatch 4| anchored at 42 in base l0 and yieldingly urged upwardlyby meansof a spring 43 surrounding an abutment screw 44 threaded *at 45 in'baseI0 and provided with check nut 46. The parts are so proportioned andarranged that with the right hand end of bridge bar 28 anchored upon pin30 (Fig. 1) and hand lever 21 depressed to its lowest position, pivot 24of the toggle will have passed dead center as referred to the pivotalanchorage 22, thereby stressing spring 40 to permit engagement andretention thereof by latch 4|, this movement stressing spring 35 uponbearing blocks l6. With the parts in the above described positions, link23 is prevented from further swinging counterclockwise by engagementwith the fastening screws 50 which retain spring 40 in place. For thepurpose of quickly releasing the upper roll 3 from the influence ofspring 35, I pivot upon channel M, of upright l2, at 5| a latch releaselever 52 which,

at its lower'end, is notched at 53 to straddle a cam ridge 54 of latch4|. Within upright II is pivoted a lever 52' similar to lever 52,notched at its lower end like lever 52, said notch straddling a camridge of a plate 4|" similar to latch 4| except that the latch tip isomitted and-upwardly spring urged by a spring 43'. I I

The upper end of each of levers 52 and 52' is provided with oppositelyextended arnis 55, 55, which are projected through perforations in the,side walls of the enclosing standards .l2 and H and these arms areconnected by hand engageable plates 56, 56 each of which extends acrossa face of the structure parallel with the bridge bar, the arrangementbeing such thatwhen either one of the plates 55 is pushed toward theadjacent uprights, notch 53 acting upon cam ridge 54 will withdraw latch4| from spring 40 to permit said spring to move the lower end of handlever 2'! outwardly to a point where pivot pin 24 will .have been movedclockwise (Fig. 1) to a point so slightly beyond the dead center of thetoggle link, whereupon spring 35 will be eflective to cause continuedclockwise movement of link 23 until the entire stress of spring 35 uponbearing block I6 will have been relieved. ll

